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3 years ago

Someone help me with my math...no bias answers, please

Mathematics

1 answer:

DaniilM [7]3 years ago

7 0

Answer:

61.8m^2are

Step-by-step explanation:

3 times 9 = 27

you multiply that two more times because there are 3 of them. So now we have 54 m.

Now we find the area of the triangles

area = 1/2 base times height

1/2(2.6) * 3

1 * 2.6 * 3/2

2.6 * 3/2

7.8/2

3.9

3.9 times 2 because there two triangles

7.8 + 54 = 61.8 m^2

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A college basketball player makes 80% of her free throws. suppose this probability is the same for each free throw she attempts,

Llana [10]

Let n be the number of expected free throw until she makes the first throw.

Suppose the number of throws are 10, Then she will make 8 of the 10 throws. On 5 throws, she make 4 (80% of 5) and on 2 throws, she makes 1.6, it means one throw. We deduce that the expected number of free throws until she makes one is 2.

8 0

3 years ago

Read 2 more answers

How many ways can six of the letters of the word 'PALINDROME' be selected and written in a row if the first two letters must be

IgorC [24]

BY permutation, There are 90 ways by which the arrangement of 'PALINDROME' takes place.

According to the statement

we have given that the word 'PALINDROME' and we have to find that the in how much ways this word can be arranged.

So, For this purpose, we use the permutation here

So, A permutation is a mathematical technique that determines the number of possible arrangements.

The word given is:

'PALINDROME' this contain 10 words and given 2 words M and E are in any order.

So, Permutation takes place with $P^{10} _{2}$ .

So,

$P^{10} _{2}$

Now solve this then

$P^{10} _{2} = \frac{10!}{(10 -2) !}$

And

$P^{10} _{2} = \frac{10!}{(8) !}$

$P^{10} _{2} = \frac{10*9*8*7*6*5*4*3*2*1}{(8*7*6*5*4*3*2*1) !}$

And then after take common from them and cancel it the equation become

$P^{10} _{2} = 10*9$

$P^{10} _{2} = 90$

90 ways are comes as the output.

So, BY permutation, There are 90 ways by which the arrangement of 'PALINDROME' takes place.

Learn more about permutation here

brainly.com/question/11732255

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4 0

2 years ago

2. A chef can make 12 meals with

valentinak56 [21]

Answer:

C. $412.50

Step-by-step explanation:

We can use proportion:

12 meals --- 3 pounds

250 meals --- x pounds

x=(250 meals*3 pounds)/12 meals = 62.5 pounds

62.5 pound * $ 6.60/pound = $ 412.50

5 0

4 years ago

the perimeter of a rectangle is 48 in. if the length is twice the width, what is the length of the rectangle?

konstantin123 [22]

16. hope that helps. :)

6 0

4 years ago

Applying properties of Exponents In Exercise, use the properties of exponents to simplify the expression.

eimsori [14]

Answer:

(a) $5^{8}$

(b) 3

(d) $\dfrac{1}{6}$

Step-by-step explanation:

We need simplify the given expressions.

(a)

Consider the given expression is

$(5^4)(25^2)$

$(5^4)((5^2)^2)$

Using the properties of exponents we get

$(5^4)(5^4)$ $[\because (a^m)^n=a^{mn}]$

$5^{4+4}$ $[\because a^ma^n=a^{m+n}]$

$5^{8}$

(b)

Consider the given expression is

$(9^{\frac{1}{3}})(3^{\frac{1}{3}})$

$((3^2)^{\frac{1}{3}})(3^{\frac{1}{3}})$

Using the properties of exponents we get

$(3^{\frac{2}{3}})(3^{\frac{1}{3}})$ $[\because (a^m)^n=a^{mn}]$

$3^{\frac{2}{3}+\frac{1}{3}}$ $[\because a^ma^n=a^{m+n}]$

$3^{1}$

$3$

(c)

Consider the given expression is

$(\dfrac{1}{3})^{-3}$

Using the properties of exponents we get

$(\dfrac{3}{1})^{3}$ $[\because a^{-n}=\dfrac{1}{a^n}]$

$3^{3}$

$27$

(d)

Consider the given expression is

$(6^4)(6^{-5})$

Using the properties of exponents we get

$6^{4+(-5)}$ $[\because a^ma^n=a^{m+n}]$

$6^{-1}$

$\dfrac{1}{6^{1}}$ $[\because a^{-n}=\dfrac{1}{a^n}]$

$\dfrac{1}{6}$

6 0

3 years ago